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Laplandite-(Ce)

Big Photo

Yubileinaya (Yubileinoye; Jubilejnaja) pegmatite, Karnasurt Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
© DV Minerals

Show Laplandite-(Ce) Photos (3)
Formula:
Na
 
4
CeTiPO
 
4
Si
 
7
O
 
18
·5H
 
2
O
Colour:gray-white, pale yellow, ...Hardness:2 - 3
This page provides mineralogical data about Laplandite-(Ce).

Classification of Laplandite-(Ce)

IMA status:Approved
Strunz 8th edition ID:8/G.11-10
Nickel-Strunz 10th (pending) edition ID:9.DJ.10

9 : SILICATES (Germanates)
D : Inosilicates
J : Inosilicates with 4-periodic double and triple chains
Dana 8th edition ID:78.7.9.1

78 : Unclassified Silicates
7 :
Hey's CIM Ref.:17.6.10

17 : Silicates Containing other Anions
6 : Silicates with phosphate
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Type Occurrence of Laplandite-(Ce)

Type Locality:Yubileinaya (Yubileinoye; Jubilejnaja) pegmatite, Karnasurt Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia

Physical Properties of Laplandite-(Ce)

Colour:gray-white, pale yellow, pale blue
Hardness (Mohs):2 - 3

Crystallography of Laplandite-(Ce)

Morphology:Radial-fibrous aggregates.

Optical Data of Laplandite-(Ce)

Type:Biaxial (-)
RI values: nα = 1.568 nβ = 1.584 nγ = 1.585
2V:Measured: 28° , Calculated: 26°
Maximum Birefringence:δ = 0.017

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:r > v strong

Chemical Properties of Laplandite-(Ce)

Formula:
Na
 
4
CeTiPO
 
4
Si
 
7
O
 
18
·5H
 
2
O
Essential elements:Ce, H, Na, O, P, Si, Ti
All elements listed in formula:Ce, H, Na, O, P, Si, Ti

Relationship of Laplandite-(Ce) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.DJ.05Narsarsukite
Na
 
2
(Ti,Fe)Si
 
4
(O,F)
 
11
9.DJ.15Caysichite-(Y)
Ca
 
2
Y
 
2
Si
 
4
O
 
10
(CO
 
3
)
 
3
·4H
 
2
O
9.DJ.20Seidite-(Ce)
Na
 
4
(Ce,Sr)
 
2
Ti[(O,OH,F)
 
5
|Si
 
8
O
 
18
(OH)]·5H
 
2
O
9.DJ.25Carlosturanite
(Mg,Fe,Ti)
 
21
(Si,Al)
 
12
O
 
28
(OH)
 
34
9.DJ.30Jonesite
Ba
 
4
(K,Na)
 
2
Ti
 
4
Al
 
2
[O|(SiO
 
4
)
 
2
|Si
 
3
O
 
9
]
 
2
 · 6H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
17.6.1Nagelschmidtite
Ca
 
7
[PO
 
4
|SiO
 
4
]
 
2
17.6.2Perhamite
(Ca,Sr)
 
3
Al
 
7.7
Si
 
3
P
 
4
O
 
23.5
(OH)
 
14.1
·8H
 
2
O
17.6.3Viséite
17.6.4Phosinaite
17.6.5Clinophosinaite
Na
 
12
(Ca,Sr)
 
4
(PO
 
4
)
 
4
(Si
 
4
O
 
12
)
17.6.6Karnasurtite-(Ce)
(Ce,La,Th)(Ti,Nb)(Al,Fe)(Si,P)
 
2
O
 
7
(OH)
 
4
·3H
 
2
O
17.6.7Lomonosovite
Na
 
5
Ti
 
2
[O
 
2
|PO
 
4
|Si
 
2
O
 
7
]
17.6.8Bornemanite
Na
 
6
[]BaTi
 
2
Nb(Si
 
2
O
 
7
)
 
2
(PO
 
4
)O
 
2
(OH)F
17.6.9Sobolevite
Na
 
12
Ca(NaCaMn)Ti
 
2
(Si
 
2
O
 
7
)
 
2
(PO
 
4
)
 
4
O
 
3
F
 
3
17.6.11 Vunonnemite
Na
 
5
TiNb
 
3
Si
 
6
O
 
25
F
 
2
·2Na
 
3
PO
 
4
17.6.12Saryarkite-(Y)
Ca(Y,Th)Al
 
5
(SiO
 
4
)
 
2
(PO
 
4
,SO
 
4
)
 
2
(OH)
 
7
·6H
 
2
O
17.6.13Steenstrupine-(Ce)
Na
 
14
Mn
2+
2
(Fe
3+
 
,Mn
3+
 
)
 
2
Ce
 
6
(Zr,Th)[(OH)
 
2
|HPO
 
4
|(PO
 
4
)
 
6
|(Si
 
6
O
 
18
)
 
2
]·2H
 
2
O
17.6.14Waylandite
(Bi,Ca)Al
 
3
[(OH)
 
6
|(PO
 
4
,SiO
 
4
)
 
2
]
17.6.15Britholite-(Ce)
Ca
 
2
(Ce,Ca)
 
3
[(OH,F)|(SiO
 
4
,PO
 
4
)
 
3
]
17.6.16Britholite-(Y)
Ca
 
2
(Y,Ca)
 
3
[(OH,F)|(SiO
 
4
,PO
 
4
)
 
3
]
17.6.17Eylettersite
(Th,Pb)Al
 
3
[(OH)
 
6
|(PO
 
4
,SiO
 
4
)
 
2
] ?

Other Names for Laplandite-(Ce)

Synonyms:
IMA1974-005
Other Languages:

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Laplandite-(Ce)

Reference List:American Mineralogist (1975): 60: 487.

Internet Links for Laplandite-(Ce)

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    Localities for Laplandite-(Ce)

    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Lovozero Massif
            • Karnasurt Mt
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Mineral and/or Locality
    Google
     
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 28th Oct 2009 19:14:34